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Banking Quantitative Aptitude Pipes & Cisterns Question Bank Pipe and Cistern

  • question_answer
    Two pipes A and B can fill a tank in 20 minutes and 40 minutes. If both pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 18 minutes?

    A) 10 min

    B) 9 min

    C) 8 min

    D) 7 min

    E) 4 min

    Correct Answer: E

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